CHAPTER 10 WEATHER SYSTEMS OF MIDDLE LATITUDES __________________________________________________________ MULTIPLE CHOICE QUESTIONS 1. In equal volumes, which one of the following air masses exerts the highest surface air pressure? a. cP b. A c. mP d. cT e. mT *b. A 2. In summer, at the same pressure, maritime tropical air is ______ continental tropical air. a. more dense than b. as dense as c. less dense than *c. less dense than 3. A source region for maritime tropical air is a. northern Canada. b. American Southwest. c. the Gulf of Mexico. d. the North Atlantic. e. None of these is correct. *c. the Gulf of Mexico. 4. Warm and humid air: a. A b. mP c. mT d. cP e. cT *c. mT 5. At the same pressure, which one of the following air masses is least dense? a. maritime tropical b. arctic

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*a. cirrus, altostratus, stratus 11. A cloud that indicates warm air advection aloft: a. cumulus b. cirrus c. stratus d. None of these is correct. *b. cirrus 12. The cloud and precipitation shield associated with a cold front typically is ______ the cloud and precipitation shield associated with a warm front. a. wider than b. narrower than c. the same width as *b. narrower than 13. A front is a narrow zone of transition between air masses that contrast in a. temperature. b.

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